Hi all: If any of you are interested, out of curiosity, I took my 300F down and got it "smogged." Below is a comparison of the results as compared with my '76 NYer with the emission controlled 440. The tester said the F tested very good considering what was under the hood and that it had no emission controls on it. 15 mph '76 NYer 300F %CO2 13.6 12.2 %O2 2.0 1.2 HC (PPM) Allowed 175 Measured 36 153 %CO Allowed 1.17 Measured 0.03 1.50 NOX (PPM) Allowed 1215 Measured 223 1465 15 mph '76 NYer 300F %CO2 13.5 12.6 %O2 2.0 0.9 HC (PPM) Allowed 142 Measured 34 138 %CO Allowed 0.97 Measured 0.02 2.10 NOX (PPM) Allowed 1075 Measured 279 1156 Just FYI. Hope the columns line up when received. In AOL they sometimes do not. Dan Reitz Northridge, CA [Non-text portions of this message have been removed]